MAX5865ETM+

Analog Front End (AFE) Overview

The MAX5865ETM+ is an ultra-low-power analog front end integrating dual 8-bit receive ADCs and dual 10-bit transmit DACs. It operates at a maximum clock frequency of 40MHz with a +2.7V to +3.3V analog supply and a +1.8V to +3.3V digital I/O supply. The device features fully differential analog I-Q inputs accepting 1V P-P full-scale signals, and fully differential outputs with ±400mV full-scale range at a 1.4V common-mode level. Typical power consumption is 75.6mW in transceiver mode at 40Msps. It includes an internal 1.024V voltage reference and supports FDD/TDD modes via a 3-wire serial interface.

Analog Front End (AFE) Feature Summary

• Integrates dual 8-bit ADCs and dual 10-bit DACs for simultaneous or independent operation
• Ultra-low power consumption: 75.6mW at 40Msps (Transceiver Mode), 64mW at 22Msps
• High dynamic performance: 48.4dB SINAD (ADC) and 72dBc SFDR (DAC)
• Excellent channel matching: ±0.2° phase and ±0.05dB gain for ADC; ±0.15° phase and ±0.05dB gain for DAC

Analog Front End (AFE) Applications

• Narrowband/Wideband CDMA Handsets and PDAs
• Fixed/Mobile Broadband Wireless Modems
• 3G Wireless Terminals

Analog Front End (AFE) Procurement Notes

Verify the component status as discontinued on major distributor platforms. Confirm availability through authorized channels or secondary markets if required for production. Ensure the package matches the 48-pin Thin QFN-EP specification.

Analog Front End (AFE) Selection Notes

Select this component for portable communication equipment requiring high dynamic performance at low power. Ensure the design accommodates the +2.7V to +3.3V analog supply and +1.8V to +3.3V digital supply. Verify that the 40Msps sampling rate meets the system requirements for FDD or TDD applications.

Analog Front End (AFE) Part Context

The MAX5865ETM+ belongs to the MAX5865 family of analog front ends designed by Maxim Integrated (now Analog Devices). It is specifically engineered for wireless terminals and mobile broadband modems, offering a compact solution with integrated ADCs and DACs in a 48-pin Thin QFN package.

Analog Front End (AFE) Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult manufacturer resources for potential replacements or obsolescence management options.